*{margin:0; padding:0;}
body{
    /*font-family: "华文细黑";*/
    width: auto;
    height:100%;
    background-color:#f1f1f1;
    background-size:100%;
    /*text-align:center;*/
}
.footer{
    /*height: 100px;*/
    width: 100%;
    background-color: #ddd;
    position: fixed;
    bottom: 0;
}